Chemistry Which one of the following has greatest mass ? Hydrogen nucleus Proton Electron Neutron Hydrogen nucleus Proton Electron Neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Nitrogen, Potassium and Phosphorous Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Nitrogen, Potassium and Phosphorous Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most common salt in sea water ? Sodium chloride Calcium carbonate Magnesium sulphate Potassium chloride Sodium chloride Calcium carbonate Magnesium sulphate Potassium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chernobyl disaster is the result of pollution by Acid rain Radioactive waste Oil spill Carbon dioxide Acid rain Radioactive waste Oil spill Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A polymeric substance used to make parachute is Cotton Viscose Rayon Terylene Cotton Viscose Rayon Terylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionic radii of N3-, O2-, F- and Na+ follows the order O2- > F- > Na+ > N3- N3- > O2- > F- > Na+ Na+ > O2- > N3- > F- N3- > Na+ > O2- > F- O2- > F- > Na+ > N3- N3- > O2- > F- > Na+ Na+ > O2- > N3- > F- N3- > Na+ > O2- > F- ANSWER DOWNLOAD EXAMIANS APP
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